Fix rollbacks

README.md

@@ -38,7 +38,13 @@ If there are updates, they should be reflected in [flake.lock](./flake.lock).
 To rollback to the previous generation:
 
 ```sh
-just rollback
+just rollback-linux
+```
+
+or on macOS:
+
+```sh
+just rollback-mac
 ```
 
 ## Garbage collection

justfile

@@ -8,9 +8,12 @@ build-linux:
 build-mac:
 	darwin-rebuild switch -I nixos-config="machines/$host/configuration.nix" --flake .
 
-rollback:
+rollback-linux:
   nixos-rebuild --use-remote-sudo switch --rollback -I nixos-config="machines/$host/configuration.nix"
 
+rollback-mac:
+  darwin-rebuild --rollback -I nixos-config="machines/$host/configuration.nix"
+
 update:
   @./nix-flake-update.sh